Jury-rigged sail for ships.



A. McDOUGALL,

I JURY RIGGED SAIL FOR SHIPS.

APPLICM 'ION HLED 0m. 26. I916.

Patented Oct. 16, 1917.

b mxmi WLTT alum ALEXANDER MCDOUG'ALIJ, OF DULUTH, MINNESOTA.

JURY-RI GGED SATL FOR. SI- IIPS.

Specification of Letters Patent.

, Patented Oct. 1c, 1917.

A Application filed October 26, 1916. Serial No. 127,907.

T 0 all whom it may concern Be it known that I, ALEXAN ER MCDOU- GALL, a citizen of the United'States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Jury- Rigged Sails for Ships, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention consists of certain improvements in auxiliary propelling means for vessels and relates particularly to a setof jury rigged sails for such purpose, they being especially applicable to ships having fiat decks free from high hatch coamings, deck winches, bulwarks or other obstructions which might interfere therewith.

The object is to provide a novel device of this character which is readily accessible either in emergency or for auxiliary means of propulsion, one that may be easily manipulated by hand and occupy the least space possible when stowed away.

Another object is to provide a form of jury rigged sails that requires nov stays,

shrouds or support other than a mast and,

which may be adjusted wholly by hand.

Other objects and advantages will appear in the further description of the invention.

In the accompanying drawings forming part of this application and in which like letters of reference indicate like parts:

Figure 1 is a side elevation of a flat decked vessel equipped with my invention.

Fig. 2 is a top plan view of same.

Fig. 3 is a midship cross sectional view of the ship.

Fig. 4 is a vertical sectional view through one of the mast sockets.

Fig. 5 is an enlarged elevation of one of the masts having mounted thereupon one of the sails partly reefed, and

Fig. 6 is a view of one of the masts having mounted thereupon a sail wholly rolled up and ready for stowing away.

1 represents the deck of the vessel in which are numerous hatches 2 and which hatches are covered by suitable plates 3, these latter, when in place being bolted down upon a low fiat coaming 4: by suitable bolts 5, which construction appears in patents previously granted to me and known in the art.

In the preferred arrangement of my juryrigged sails, I place a mast step or socket 6 at each forward or after corner, as desired, of the hatches, the base of the socket being formed with an elevated projecting flange 7 of the proper "height to rest upon the hatch cover 3 and to be bolted therethrough by one of the hatch bolts 5. Upon the opposite side of the socket and flush with the bottom thereof is a flange 8 which rests upon and is bolted directly to the deck 1 by a suitable bolt 9. By putting the socket adjacent the hatches and utilizing one of the hatch bolts for holding same, the necessity for more numerous holes in the deck of the vessel is avoided and what holes are formed therein as for the bolts 9, may be kept closed either by wooden plugs or the bolts themselves, if desired, when the sockets are not in place.

The sockets 6 are preferably made larger at the top than at the bottom and the butt of the masts lltapered to snugly fit therein and are retained by means of suitable through bolts 10 which pass'entirely through both the mast and socket so as to make a stout and secure footing for the mast requiring no shrouds or stays Whatever for additional support.

. Aneye 12 is formed upon the forward side of each socket 6 for convenient attachment of the sheet or clue line of the next sail forward and a convenient cleat 13 is formed upon the opposite side and which may be used in the shipping and unshipping of the masts.

The masts 11 are tapered from the top of the steps to their upper ends and are, as com pared with the usual masts for such vessels, comparatively short and stubby.

Each mast is fitted with a triangular shaped, or leg of mutton sail l5 tightly fitted thereto and without halyards or attachments other than tight lashings about the mast as illustrated at 14, and which secure fastening of the sail to the mast is for the purpose of permitting the sail to be clued about the mast for shortening it in lieu of reefing, and this is accomplished by passing the leach of the sail about the mast one or more times as desired, and the sail being thus Wound up about the mast results in reducing its area to the force of the wind and obviates the necessity of reef points and their use, the foot of the sail being inclined upwardly toward the clue, to clear the deck well.

A still further object of the sail and mast being securely united is to permit of the former being entirely Wound up upon the latter for stowing away when not in use.

It is evident that the mast sockets or may not be placedwuponrthe deck" at the beginning of a voyage, depending entirely upon the conditions anticipated-i by the navigator and that the only provision What:

ever necessary in"-the construction of" an ordinary ships hull for thev utilization of my improved auxiliary device is" the addition of a-singlehole in the deck o t-the ship for each; jury mastsocket.

Thus Ilhave providedfan extremely simpleand convenient auxiliary; means for making available to aship: While at seaathe power ofthe, Wlndy either n addition to other forms of propulsionior as provislon the ordinary sail equipment is r used.

Having thus described my. invention What-i I claim as new-and desire to secureby Letters Patent, 7 is 1. The combination With a'ship ofa phrrality, of portable mast sockets, masts havingtth'eir bases tapered to snugly fit'within.

the sockets, means for holding .the mast" against rotation and' legof" mutton sails tightly, lashed to the masts insuch a manner. as'to be shortened b'y' -winding the sail about the mast. p I

2. The combination With a ship, of a plural-ityof portable mast sockets, masts having rtheirbases--tapered =to snugly fit Within the sockets, means to prevent the masts revolvin g in ith'e": sockets, and leg of mutton sails securely lashed to the masts in such a maimer 'askto be shortened by windingqthe sails about the mast, substantially as and for the purpose set forth.

3. The combination, With afiush decked vessel having low fl'at' hatches,,, of. mast sockets designed :to overlap and-'be, teinporarilyfitted to opposite corners'athxvartships of each hatch, portable masts having. leg o'fmutton sails tightlylashed there'- to and designed to be Wholly supportedby;

the sockets.

l. The combination With auxiliary pro pellingfmeans for shipscomprising a tr iangular shaped "sail lashed tightly to a portable mast and means for securing the mast wlthout shrouds or' stays to the deck of the ship, of means for securing the mast against rotation. whereby; the exposed area' of" the sail may; be} reduced by Winding {it about the mast;

signature in the presence of'tW'o Witnesses.

ALEXANDER- MeDQUGALLL Witnesses;

A; GDUNN;

S. GEo'S'rEvENs.

Copies of thispatent may be obtained as 'fixre cents eachgty addressi'iig'th Commissioner"of laftents;

We.shing1:on,'1)'.'03" 

